Semiconservative model of $DNA$ replication was proposed by which workers in eukaryotes
Taylor, Woods and Hughes
Messelson and Stahl
Nirenberg and Khorana
Watson and Crick
It's Obvious
Bacteria were grown in a medium containing heavy isotope of nitrogen ($N^{15}$) for many generations and all their $DNA$ contained many heavy nitrogen only. A bacterium of this type was transferred to normal medium and allowed to duplicate. After two divisions of heavy $DNA$ is likely to be that
Replication of $DNA$ is in
Give scientific reasons : $DNA$ polymerase plays a dual function during $DNA$ replication.
Which of the following statement is correct regarding the process of replication in $E$.coli?
$DNA$ polymerase helps in
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